Effects of estradiol benzoate on reproductive characteristics in beef cattle

Author

Lacey Dysart

Issuing Body

Mississippi State University

Advisor

Larson, Jamie

Committee Member

Smith, Trent

Committee Member

Lemley, Caleb O.

Date of Degree

5-1-2020

Document Type

Graduate Thesis - Open Access

Major

Animal and Dairy Science

Degree Name

Master of Science

College

College of Agriculture and Life Sciences

Department

Department of Animal and Dairy Sciences

Abstract

Assisted reproductive technologies such as estrus synchronization and embryo transfer can aid producers in meeting their goals of improving genetics, calve one calf per cow per year, and wean heavy calves. Most estrus synchronization protocols follow a GnRH-PGF-GnRH sequence. Ovulation prompted by exogenous gonadotropin releasing hormone (GnRH) may cause the release of sub-mature oocytes and lead to decreased pregnancy rates. Inclusion of estradiol benzoate (EB) improved pregnancy rates in some studies. The objective of this study was to determine if EB affects blood perfusion of follicles, corpus luteum (CL), or uterus, concentrations of estradiol and progesterone, or incidence of standing estrus.

URI

https://hdl.handle.net/11668/16955

Recommended Citation

Dysart, Lacey, "Effects of estradiol benzoate on reproductive characteristics in beef cattle" (2020). Theses and Dissertations. 1738.
https://scholarsjunction.msstate.edu/td/1738